It is very important that your doctor check your progress at regular visits to make sure that the quinidine is working properly and does not cause unwanted effects.
Do not stop taking this medicine without first checking with your doctor, to avoid possible worsening of your condition.
Before having any kind of surgery (including dental surgery) or emergency treatment, tell the medical doctor or dentist in charge that you are taking this medicine.
Dizziness or lightheadedness may occur with this medicine, especially when you get up from a lying or sitting position. Getting up slowly may help.
Fainting may occur with this medicine. Do not drive or do anything else that could be dangerous if fainting occurs.
. Check with your doctor immediately if you faint or experience other side effects with this medicine.
Your doctor may want you to carry a medical identification card or bracelet stating that you are using this medicine.